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ASoC: sgtl5000: add 5 band graphic equalizer

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Enable 5-band graphic equalizer which allows manipulation of
gain in range -11.75dB to 12dB for 5 specific sound bands:
115Hz, 330Hz, 990Hz, 3000Hz, 9900Hz.

Signed-off-by: Michal Oleszczyk <oleszczyk.m@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Michal Oleszczyk 2018-02-19 10:03:46 +01:00 committed by Mark Brown
parent 7f7d5239f5
commit 92a2742f98
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 28 additions and 3 deletions
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24
sound/soc/codecs/sgtl5000.c
View File

@ -520,6 +520,9 @@ static const DECLARE_TLV_DB_RANGE(mic_gain_tlv,
/* tlv for DAP channels, 0% - 100% - 200% */
static const DECLARE_TLV_DB_SCALE(dap_volume, 0, 1, 0);
/* tlv for bass bands, -11.75db to 12.0db, step .25db */
static const DECLARE_TLV_DB_SCALE(bass_band, -1175, 25, 0);
/* tlv for hp volume, -51.5db to 12.0db, step .5db */
static const DECLARE_TLV_DB_SCALE(headphone_volume, -5150, 50, 0);
@ -585,6 +588,21 @@ static const struct snd_kcontrol_new sgtl5000_snd_controls[] = {
SOC_SINGLE_EXT_TLV("AVC Threshold Volume", SGTL5000_DAP_AVC_THRESHOLD,
0, 96, 0, avc_get_threshold, avc_put_threshold,
avc_threshold),
SOC_SINGLE_TLV("BASS 0", SGTL5000_DAP_EQ_BASS_BAND0,
0, 0x5F, 0, bass_band),
SOC_SINGLE_TLV("BASS 1", SGTL5000_DAP_EQ_BASS_BAND1,
0, 0x5F, 0, bass_band),
SOC_SINGLE_TLV("BASS 2", SGTL5000_DAP_EQ_BASS_BAND2,
0, 0x5F, 0, bass_band),
SOC_SINGLE_TLV("BASS 3", SGTL5000_DAP_EQ_BASS_BAND3,
0, 0x5F, 0, bass_band),
SOC_SINGLE_TLV("BASS 4", SGTL5000_DAP_EQ_BASS_BAND4,
0, 0x5F, 0, bass_band),
};
/* mute the codec used by alsa core */
@ -1303,11 +1321,11 @@ static int sgtl5000_probe(struct snd_soc_component *component)
SGTL5000_BIAS_VOLT_MASK,
sgtl5000->micbias_voltage << SGTL5000_BIAS_VOLT_SHIFT);
/*
* disable DAP
* enable DAP Graphic EQ
* TODO:
* Enable DAP in kcontrol and dapm.
* Add control for changing between PEQ/Tone Control/GEQ
*/
snd_soc_component_write(component, SGTL5000_DAP_CTRL, 0);
snd_soc_component_write(component, SGTL5000_DAP_AUDIO_EQ, SGTL5000_DAP_SEL_GEQ);
/* Unmute DAC after start */
snd_soc_component_update_bits(component, SGTL5000_CHIP_ADCDAC_CTRL,

7
sound/soc/codecs/sgtl5000.h
View File

@ -399,4 +399,11 @@
#define SGTL5000_SYSCLK 0x00
#define SGTL5000_LRCLK 0x01
/*
* SGTL5000_DAP_AUDIO_EQ
*/
#define SGTL5000_DAP_SEL_PEQ 1
#define SGTL5000_DAP_SEL_TONE_CTRL 2
#define SGTL5000_DAP_SEL_GEQ 3
#endif